hyatt



(No Model.) 2 Sheets-Sheet 1.

J. W. HYATT. AUTOMATIC REAGENT FEEDER.

No. 434,392. Patented Aug. 12,-1890.

(No Model.) 2 Sheets-Sheet 2. J. W. HYATT.

AUTOMATIC REAGENT FEEDER.

No. 434,392. Patented Aug. 12, 1890.

3 with the valve turned to exhaust the fluid A UNITED STATES PATENTOFFICE.

J OllN W. IIYATT, OF N EWARK, NEWV JERSEY, ASSIGNOR TO THE l-IYATT IPURE WATER COMPANY, OF SAME PLACE."

AUTOMATIC REAG ENT-FEEDER.

SPECIFICATION forming part of Letters Patent No. 434,392, dated August12, 1890. Application filed September 17, 1889. Serial No. 324,226. (Nomodel.)

To all whom it may concern.-

Be it known that I, JOHN W. HYATT, a citizen of the United States,residing at Newark, Essex county, New Jersey, have invented certain newand useful Improvements in Reagent=Feeder with Motor, fully describedand represented in the following specification and the accompanyingdrawings, forming a part of the same.

This invention relates to a reagent-feeder actuated by a water-motorthrough which a current of water passes to or from the filter; and theinvention consists in the combination, with the filter and thewater-motor, of a reagent-feeder actuated intermittingly by av supply ofwater under pressure, and valve mechanism actuated by the water-motor to.the motor-wheels.

admit the water-pressure intermittingly to the feeder.

It also consists in a particularconstruction for the Water-valve.

The invention will be understood by ref: erence to the annexed drawings,in which Figure 1 is a side elevation of the entire apparatus. Fig. 2 isa longitudinal section of the water-motor and valve mechanism with theparts in section where hatched upon the center line. Fig. 3 is an endView of the valve in one half of its casing. Fig. 4 is a section uponthe center line of the valve and easing from the feeder; Fig. 5, an endView of same parts. Fig. 6 is an end View of the motor with headremoved. Fig. 7 is a plan of the motor with a portion of the shellbroken away toexpose the interior. Fig. 8 is an end view, and Fig. 9 anedge View, of one of Fig. 10 is alongitudinal section of thereagent-feeder, and Fig. 11 the inside of one head.

In Fig. 1, E is the filter; M, the motor; V, the valve-casing;- A, thereagent-feeder; B, the reagent-tank D, an inlet-pipe conductingunfiltered water to the filter, and C a pipe conveying filtered waterfrom the filter; E, a branch conducting fluid under pressure from thepipe D to the valve-casing V, and E a pipe conveying the same fluid fromthe valvecasing to the feeder A.

The reagent-feeder consists of two diaphragms d d, secured attheirmargins within the casing A and connected upon one side by pipe I) tothe reagent-tank B, in which the reagent would be exposed to atmosphericpressure.

check-valve f,-and a branch pipe b provided with a check-valveg,'connects the same side of the diaphragm with the pipe 0, conveyingWater to the filter. The opposite side of 'the diaphragm is connected bypipe E with the valve-casing V, in which a disk-shaped valve '0 isarranged to rotate in close contact with vided. A stem 8 connects thedisk with the spindle s of the water-motor, which consists of a seriesof wheels h, having blades h rocylindrical shell M.

The pipe D is attached to the heads N at the opposite ends of the shell,and the motor is shown so connected with the filter that the fluiddelivered by the pipe passes through the length of the shell and thencethrough the pipe again to thefilter. The headsNare parallel with theiraxis, while the series of vanes i,between which they rotate, are shownin Fig. 6 inclined to the axis or shaft of the motor, so that thecurrent of water passing longitudinally through the shell is repeatedlydiverted in a spiral direction, and thus impinges against the flat sidesof the blades h, as indicated by the arrows a in Fig. 7.

The disk (1' is perforated by an aperture is, adapted to connect theopenings of the pipes E and E', and is provided in one sidewith anarched exhaust-passage Z, adapted toconnect the outlet of the pipe Ewith the supply-pipe E. A portion of the water flowing under pressure tothe motor M is led by the pipeE to an aperture in the valve-casing V,and when the passage 1 in the side of the disk '0 is opposite such pipe,the water flows through the same into the pipe E and presses upon oneside of the diaphragm (Z. The checkthe check-valve 9 opens away from thesame toward the pipe D; so that a vibration of the The pipe b isprovided with a valve f opens toward the diaphragm d, while the casingto interrupt the flow of fluid from the several apertures with which itis protated between inclined vanes i, fixed within a 75 provided withbearings n for the spindle s. The blades h of the motor-wheels are shownF is designed for upward filtration, and the reagent is thereforesupplied to the fluid passing to the inlet-pipe D to precipitate theimpurities before filtration. By the operation of the motor and valve '0the diaphragm d is automatically reciprocated to supply, by continuedintermittent charges, the desired volume of reagent to the pipe D. Thisoperation is effected as follows: The water flowing through themotor-shell M is repeatedly deflected by the vanes'i into contact withthe blades of the several motor-wheels, and thus positively rotates thespindle s at a speed corresponding with the volume of water passingthrough the filter. By the rotation of the valve-disk '0, connected withthe motorspindle, the passage 1' is, once in eachrevolution of the disk,brought opposite to the pipes E and. E, and connects the two, so thatthe fluid passing through such pipes may press upon the diaphragm.Suchpressure expels a charge of reagent in contact with the oppositeside of the same through the valve g into the contents ofthe pipe D. Thecontinued rotation of the disk then connects the pipe E with thewaste-pipe E by the exhaust-aperture is permitting the escape of thefluid from the pipe E, and thus allowing another charge of reagent toenter the casingA from the tank B. The rotation of the disk thusalternately efiects a pressure of the fluid upon the diaphragm anddischarges such pressure by cutting 0d the supply of fluid and opening aconnection between the diaphragm. and the waste-pipe E Propeller wheelsprovided with spiral blades have been heretofore .used in motors foroperating a reagent-feeder; but in such construction the speed of thepropeller-wheel .does not vary in the same proportion as the volume offluid. moving over it, and the endthrust upon the supporting-shaft ofthe wheel produces a very material degree of friction to retard itsmovement. It will be noticed, as shown in Fig. 6, that the current offluid moving in the direction of the arrows a past I claim herein is--the motor-wheels produces no perceptible endthrust upon theirsupportingshaft or spindle s, as the direction of the current is obliquely towardthe flat sides of the blades, and there is no pressure upon the wheelsto produce any end-thrust except that upon their edges, which may inpractice be made so thin as to present no appreciable area. It will bealso seen that the current of fluid moving obliquely upon the blades ofthe motor-wheels presses with substantially the same degree of forcenponeach of the wheels, as its direction. and velocity are the same afterpassing between each of the series of inclined vanes 'i, and theaggregate force of rotation in the spindle s is therefore augmented byeach ofthe wheels secured thereon. By such con: struction I am thereforeenabled to avoid the retarding effect of friction upon the motorspindle,and am enabled not only to secure any desired amount of powerforactuating the valve, but the power generated nfay be made so great inproportion to the frictional resistance of the valve that the latterwillhave very little effect upon the movements of the motor. The velocity ofthe motor-spindle will therefore vary accurately in proportion to, thevolume of fluid moving through the motor, and a reagent-feeder will beactuated exactly in proportion to such volume of fluid and supply thereagent to the unfiltered water in precisely the desired amount. It isobviously immate rial what kind of valve or valves be actuated by themotor to alternately supply the fluid under pressure to one side of thediaphragm d and to discharge the fluid from the same; and it is alsoimmaterial whether the motor be actuated by the current of fluid movingtoward the filter or by the purified water mov-- ing from the same.

The pipe D is'shown bent adjacent to the motor to permit the extensionof the spindle s in a line with the axis of the shell M; but sucharrangement of the pipe is not essential, as any suitable gearing may beused to transmit the motionof the spindle laterally, if preferred.

It will be understood that a small volume of water about equal to thatof the reagent consumed will be discharged from the pipe E at eachvibration of the diaphragm, and as the only function of such fluid is topress the diaphragm intcrmittingly, as desired, it

is immaterial Where such fluid under'pressure be obtained, and it mayvtherefore be drawn directly from the pipe 0, as indicated by the dottedline C, or from any other source of fluid possessing the desired head.It is obviously immaterial whether a flexible diaphragm secured at itsedges, as shown in Fig. 9, be employed as the reagent-feeder, or acylindrical plug orpiston moving in :1. cylinder, because bothconstructions are already known as equivalent in the art of feeding aprecipitating fluid.

Having thus set forth my invention, what T 1. The combination, with afilter feed-pipe,

of' a motor actuated by the fluid passed.

through the feed-pipe, a moving diaphragm or its equivalent having thereagentsupplied' to one side thereof, and a valve actuated. by the motorand supplying fluid under pressure intermittingly to the opposite side,as and for the purpose set forth.

2. The combination, with a filter, of a 1110-- tor actuated by the fluidpassed through the filter, the casing A, containing diaphragm d,

a reagent-tank B, with pipe and check-valve connecting it to the casingupon one side of the diaphragm, a pipe and check-valve for dischargingthe reagent from the easing into In testimony whereof I have hereuntoset the unfiltered water, and a valve actuated by my hand in thepresence of two subscribing the motor and suitably connected to thecaswitnesses.

ing A upon the opposite side of the dia- JOHN W. HYATT. I 5phragm,andoperated tointermittinglysupply Witnesses:

fluid t0 and discharge it from the casing, as THOS. S. CRANE,

I and for the purpose set forth. L. LEE.

